Safety device



G. FRANK SAFETY DEVI CE March 17, 1931.

' Filed April 6, 1929 ATTORNEYS.

Patented Mar. 17, 1931 r Iv v UNITED STATES PATENT orrics;

GEORGE FRANK, or oswneo, rumors i v SAFETY DEVICE Application filed April 6, 1929; Serial n'm 3 53, 314 7 This invention appertains to attachments broken'away and in. section and illustrating for motor vehicles and has for one of its primy improved anti-skidding device incorpomary objects to provide novel means assorated itherewith; ciated with a conventional automobile for Figure 2 is. a top plan view of the chassis 5 preventing the skidding of the same on wet, of a motor vehicle showing my improved aticy, or snowy pavements or roads, the means tachment incorporated therewith. v being normally disposed in an inoperative R'efierring-to the drawings iri-.detai-l,.whereposition and capable of being brought into in similar-referencecharacterszdesignate cor-- instant use when necessary or advisable. responding parts throughout the several l0 Another object of my invention is the proviews the letter A generally indicates myiin' 55 vision of a device rockably carried by the proved device and: B: automobilewvith rear axle housing of a motor vehicle, said dewhich the same can. be incorporated. vice including a pair of prongs or shoes for The automobile .B can be of any' convenengaging the roadway in case the vehlcle tionali construction or type either of the starts to skid or slip, said prongs or shoes be pleasure oit'truck. type and includes the usual U0 ing normally held in an inoperative ralsed pochassis 5. having the rear axle housing a sition to permit the free normal use of the Ve- My improved attachment A comprises a hicle, with novel means arranged adjacent to substantially U=shaped yoke loriilclllilillgt'lle the drivers seat for moving the shoes or arms-l1 andit'he connecting crossbar lQwhich prongs into an operative ground-engaglng is provided at a point equi-dista nt ends position; with an eye or opening 13' for a purpose-which Another object of my invention 18 h P will be later diescribed-. The yoke 10 adjavision of means capable of being brough cent to itsoppositeends-is provided with eyes llltO and out Of active use {T0111 the Cl1lV61 S 1Q which are in aline nent wjt h eyes. 15 c3 1- seat of a motor vehicle for engagi g th r-ied by one transverse brace 1610ithecliasground, which device can funct t0 hold a sis. Therear endsof the arm's'll carry semivehicle against backward movement on a i h b i u 1.7 d i il ihillside or the like. circular bearing collarsl8zare formed on. the

A Still further Object of y ilwentlon is inner ends. of anti-skidding arms 19 and the 0 provide a novel anti-skidding attachment for ll I; d 18; vid d, ith ti g5 automobiles of the above character, which cars 20 hi h are b lt d t th t 21 will be durable and ei'icient in use, o that The anti-skidding arms 195extend rearwardwill be simple and easy to manufacture and 1 fr' th axle hgfksinjg'fig a Shown, d it one which can be placed upon the market and can b seen; th t-th k 1-0 d idti.

incorporated with a conventional automobile kiddi lg mt (31116119 l -1 131 at a low cost and without any change in the ing 6 asauni ts The lower terminals of the present construction thereofantic-skidding arms 19: can be provided with With these and other objects in v1ew, the any preferred W133 f a t kiddi shoes invention COllSlSbS in the novel COnStI'llCtlqn, 1 01155 0 the in the pre entinstan e arrangement and format n of P aS W111 I have shown thelower terminalsflof the arm: 35 be hereinafter more specifically described, id d. ith; oi t d h d 22; f b i claimed, and illustrated inthe accompanying against g gound; 01rinto ice drawing, in which drawing: sn w, i

Figure 1 is a fragmentary side elevation -The yoke and the antlrsklddmg-arms. are

u of a motor vehicle showing parts thereof normally controlled by C(DlltlilCtllG COll '90 springs 23 which are connected respectively to the eyes 14 and 15 and these springs normally function to hold the anti-skiddii'ig arms in a raised position and the heads 22 thereof from out of engagement with the ground.

I provide novel means for rocking the arms and the yoke on the rear axle housing When it is necessary or desirable for bringing the heads 22 into engagement with the ground and this means embodies an operating lever 25 arranged adjacent to the drivers seat and preferably is located near the emergency or hand brake and in fact I may be able to use the hand brake lever for operating my device. 7

The lever 25 is rockably mounted at a point intermediate its ends, asat 26, by a-suitable quadrant 27 and the lever is held in adjusted position on said quadrant by the use of a hand grip manipulated dog 28 whichis adapted to engage the teeth of the quadrant. The lower end of the lever 25' has pivotally connected carried by the rearmost transverse brace on opposite sides of the guide for the rod carried thereby, eyes on the yoke on opposite sides of the point of connection of the rod therewith, and contractile coil springs connected to the eyes of the transverse brace and to the eyes of the yoke normally holding the arms in a raised position.

In testimony whereof I aflix my signature.

GEORGE FRANK.

thereto the rearwardly extending operating rod 29 which has its rearendroekably and slidably connected to the eye or opening 13 in the yoke 10.

It is obvious from' this construction that upon a suitable manipulation of the lever 25 and upon rearward movement of the rod 29, the yoke and the anti-skidding arms will be operated and the heads 22 of said arms will a be brought into engagement with the ground or icy surface. These heads located adjacent to the opposite sides of the vehicle atthe rear end thereof will .efiectively V bite into the ground or icy surfaceand thus effectively prevent skidding of the rear end of the vehicle on icy, snowy or wet pavements and the device is particularly adaptable to be brought into play when it is necessary to suddenly apply the brakes.

It is obvious thatwhen the lever 25 is released the springs 23 will function to return the anti-skidding arms and the yoke 10 to their normal positions.

The device-can also be brought into play -when the vehicle is parked on a hillside or the like so as to prevent the vehicle from rolling backward down thehill.

Changes in details maybe made without departing from the spirit or the scope of this invention, but: w

lVhat'I claim as new is I 5 y 1. The combination with an automobile including a chassis having transverse braces, and a rear axle housing, of a safety attachment therefor comprising a. yoke and antiskidding arms connected with the yoke, the yoke and anti-skidding arms being rockably 'mounted'on said rear axle housing, pronged heads on said arms, a hand lever arranged adjacent to the forward end of: the chassis mounted for rocking movement, a-,rod con necting the lower end of said lever to the central portion of the yoke, guides carried by the transverse braces receiving the rod, eyes 

